Eric Fleming served as an infantryman in the U.S. Army. He fought in the first Gulf War, and is still suffering ill effects from combat. John Ismay/KPCC

Starting Wednesday morning, military veterans began walking back and forth across Pasadena's scenic Colorado Street Bridge. Their goal: raise public awareness about the fact that 20 vets kill themselves in the U.S. every day.

The Colorado Street Bridge is a tragic icon - over the years, so many people have leaped from it to their deaths that it's earned the nickname "The Suicide Bridge."